Navigation Links
A-maize-ing double life of a genome
Date:7/14/2014

Early maize farmers selected for genes that improved the harvesting of sunlight, a new detailed study of how plants use 'doubles' of their genomes reveals. The findings could help current efforts to improve existing crop varieties.

Oxford University researchers captured a 'genetic snapshot' of maize as it existed 10 million years ago when the plant made a double of its genome a 'whole genome duplication' event. They then traced how maize evolved to use these 'copied' genes to cope with the pressures of domestication, which began around 12,000 years ago. They discovered that these copied genes were vital to optimising photosynthesis in maize leaves and that early farmers selecting for them 'fuelled' the transformation of maize into a high-yield crop.

A report of the research is published this week in the journal Genome Research.

'Although whole genome duplication events are widespread in plants finding evidence of exactly how plants use this new 'toolbox' of copied genes is very difficult,' said Dr Steve Kelly of Oxford University's Department of Plant Sciences, lead author of the report. 'With crops like wheat it's not yet possible for us to unravel the 'before and after' of the associated genetic changes, but with maize we can chart how these gene copies were first acquired, then put to work, and finally 'whittled down' to create the modern maize plant farmed today.'

It is particularly useful for such genetic detective work that close relatives of maize did not duplicate their genomes 10 million years ago: those that retained a single copy went on to become the plant we now know as sorghum. This enabled the researchers to compare genetic data from these 'duplicated' and 'non-duplicated' descendants of ancient maize, something that is not yet possible with other duplicated crops like wheat.

In the wild plants have to overcome the challenges posed by pathogens and predators in order to survive. However, once
'/>"/>

Contact: University of Oxford News Office
news.office@admin.ox.ac.uk
44-186-528-0528
University of Oxford
Source:Eurekalert

Page: 1 2

Related biology news :

1. Green Oakley Cluster to double OSC computing power
2. Hammerhead shark double whammy
3. Heart study suggests city center pollution doubles risk of calcium build-up in arteries
4. Doubling the information from the double helix
5. Agricultural expert outlines path for developing nations to double food production, meet 2050 demand
6. Double the pain: RUB biologists find the cause of pain in the treatment of fair skin cancer
7. Paddlefishs doubled genome may question theories on limb evolution
8. New process doubles production of alternative fuel while slashing costs
9. Brain enzyme is double whammy for Alzheimers disease
10. Nanoparticles added to platelets double internal injury survival rate
11. Did a forgotten meteor have a deadly, icy double-punch?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... of people in the United States have a circulatory ... can be painful and may even require surgery in ... muscle wasting and, in turn, limb amputation. , At ... (UTHealth) Medical School, scientists tested a non-surgical preventative treatment ... was associated with increased blood circulation. Their proof-of-concept ...
(Date:7/28/2014)... Solanum pennellii , a wild relative of the ... of researchers including the labs headed by Professors Neelima ... of Plant Biology. The new genome information may help ... published July 27 in the journal Nature Genetics ... Aachen University in Germany. The UC Davis labs carried ...
(Date:7/28/2014)... hunter, but the target of his work consists of ... special methods and instruments. Benjamin Hause, an assistant research ... Kansas State University, recently published an article about one ... important find in the United States. , "We had ... it was," Hause said. "We used next-generation sequencing to ...
Breaking Biology News(10 mins):Scientists discover genetic switch that can prevent peripheral vascular disease in mice 2Researcher using next-generation sequencing to rapidly identify pathogens 2Researcher using next-generation sequencing to rapidly identify pathogens 3
... buzzing around your plate. Its color and motion could both influence ... might decide it was a bee and move away. Conversely, you ... insect away. You perceive both color and motion, and decide based ... heartbeat. The mystery is how. In an article published November ...
... A human clinical study of older adults has demonstrated ... dietary supplement created by Natura Therapeutics, Inc., showed ... individuals taking a placebo. Cognition includes processes such as ... The company,s study, Nutraceutical Intervention Improves Older Adults, Cognitive ...
... early infancy may be a key to early identification of ... of Mental Health (NIMH), part of the National Institutes of ... the study reveals the earliest sign of developing autism ever ... first two to six months of life. "Autism ...
Cached Biology News:Stanford researchers surprised to find how neural circuits identify information needed for decisions 2Stanford researchers surprised to find how neural circuits identify information needed for decisions 3Stanford researchers surprised to find how neural circuits identify information needed for decisions 4Stanford researchers surprised to find how neural circuits identify information needed for decisions 5Natura Therapeutics product shown to improve decision making skills in older adults 2Earliest marker for autism found in young infants 2Earliest marker for autism found in young infants 3
(Date:7/29/2014)... G-CON Manufacturing Inc., the standard in ... a new leadership appointment designed to drive the company’s ... , Maik Jornitz, Chief Operating Officer of G-Con ... with leading the pioneering company through its next phase ... of development and look forward to providing our next ...
(Date:7/29/2014)... 2014 The prestigious "Discovery or Exploration ... recently awarded to Juliana Hillis and Kaylie O’Connell, students ... project, “From an Egg, Everything: America’s First IVF Baby". ... for the National History Day program during a week-long ... educators in Washington, D.C. , The growing popularity of ...
(Date:7/29/2014)... FL (PRWEB) July 29, 2014 EXpressLO ... situ lift out specimen preparation solutions, has been granted ... Office for specimen manipulation methods incorporating a unique specimen ... This is the second company patent for EXpressLO ... Giannuzzi. , These complementary patents extend EXpressLO’s ...
(Date:7/28/2014)... -- Sapphire Energy, Inc. , a global leader ... biotechnology veteran James Levine as president, CEO ... Cynthia ,CJ, Warner, who is stepping down from her ... company,s board of directors. "The impact of ... scale algae-based fuels has been tremendous, from overseeing the ...
Breaking Biology Technology:G-CON Manufacturing, Inc. Announces Maik Jornitz as President 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 2In Vitro Fertilization (IVF) was the Subject of This Year’s Winning Entry for the Prestigious Library of Congress “Discovery or Exploration in History Award” 3EXpressLO LLC Granted Second U.S. Patent for Innovative Specimen Preparation Methods 2Sapphire Energy Announces New CEO James Levine 2Sapphire Energy Announces New CEO James Levine 3
... First Capability To Rapidly Identify Five Candida ... Positive Blood Cultures In One Test, WOBURN, ... FDA 510(k) clearance of the Yeast Traffic Light ... positive blood cultures. The,Yeast Traffic Light(TM) is the ...
... 23 Affitech AS, the Norwegian human,antibody ... accomplished the,second milestone in its research and ... recombinant antibodies against an unnamed oncology,target. Affitech ... Antibody,Screening) system that included its proprietary antibody ...
... 22, 2008 -- Chemists at Rice University have discovered ... tiny, wand-like nanoparticles that are being studied in dozens ... disease and improving electronic viewscreens. , "The content of ... is only about 20 percent," said lead researcher Eugene ...
Cached Biology Technology:AdvanDx Receives FDA 510(k) Clearance for Yeast Traffic Light PNA FISH(TM) 2AdvanDx Receives FDA 510(k) Clearance for Yeast Traffic Light PNA FISH(TM) 3Affitech Announces Second Milestone in Roche Antibody Discovery Collaboration 2Purifying nanorods: Big success with tiny cleanup 2